Home / 99,988,041.25-137,983,699.48-55,935,775.77

Finding the Fourth Proportional to 99,988,041.25, 137,983,699.48 and 55,935,775.77

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Solution

The fourth proportional to 99,988,041.25, 137,983,699.48 and 55,935,775.77 is: 77,191,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,988,041.25 : 137,983,699.48 = 55,935,775.77 : x
  2. Step 2: Convert to fraction form
    99,988,041.25/137,983,699.48 = 55,935,775.77/x
  3. Step 3: Cross multiply
    99,988,041.25x = 137,983,699.48 × 55,935,775.77
  4. Step 4: Simplify right side
    99,988,041.25x = 7,718,225,273,821,909
  5. Step 5: Solve for x
    x = 7,718,225,273,821,909/99,988,041.25
  6. Step 6: Final answer
    x = 77,191,483.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.